the jet was an f-22 fighter like this one worth more than $140 million. officials say it's now littering a base runway. the main highway there also shut down. no word on the cause of the crash. more details as they come in. >>> world leaders are now taking action to try to defuse the violence between israel and hamas. coming up, what they're doing and how it's going so far. word from the white house as violence escalates. a live repor the united nations as the troops mass and threat of a ground war builds. from the journalist of fox news, this is a thursday fox report >> shep: coverage of massing forces in the middle east as israel prepares for what may become a ground invasion of the gaza strip. world leaders are monitoring the rapidly deteriorating situation there and working to prevent an all-out war. hamas claims this video shows rockets launched into israel, some of the hundreds they fired today. meanwhile, israeli jets slammed targets in the gaza strip, softening up ammunition areas. hours ago, the white house blamed hamas for the situation and said